14-Epicochlioquinone B 157183-69-2 Pyrano(3,2-a)xanthene-8,11-dione, 9-(1,3-dimethyl-2-oxopentyl)- 1,2,3,4a,5,6,6a,12,12a,12b-decahydro-3-(1-hydroxy-1-methylethyl)-6a,12b-dimethyl-, (3R-(3alpha,4abeta,6abeta,9(1S*,3S*),12beta,12abeta,12balpha))-